The hex color #6d18d4 is a dark color. The web-safe version is Hex
#6600CC. A complementary color is
#92E72B. The grayscale version is
#737373. A 20% lighter version of the original color is
#A04BFF, and Hex
#3A00A1 is the 20% darker color. If the color is saturated by 10%, you get
#6C0FDE. If the color is desaturated by 10%, the color
#6E21CA is obtained.